How long it will take to complete neutron unit test in devstack environment

Hi i have setup a devstack environment in centos os 6.5 VM with 2Gb ram and 30 gb HDD. I also configured local.conf to install along with neutron server. Now i did run_test.sh for neutron service and the test is going on for more than 16 hrs , still the run_test.sh process is running . Any idea how long it will take to complete all unit test.

Also I did not see any sign up page for http://ask.openstack.org how can i create a new account for this?